A method for non-text-based identification of a selected item of stored music. The substrate has a photo sensitive region and a transistor device region, and the p type well is disposed in the substrate. The apparatus is designed to be mounted on a vehicle. In order to equip the cable leadthrough with cables in a particularly easy manner and to be able to mount it on the switchgear cabinet, the invention provides that the frame openings are open on one side for inserting the bushes. The metal-filled vias are contacted with a thermoelectric cooler to remove excess heat from the semiconductor device or devices.